Question

collect information about respiratory diseases because of pollution, tobacco. discuss with your classmates and prepare a note on it.​

Answer 1

Answer:

Introduction:-

The respiratory system extends from the nose and upper airway to the alveolar surface of the lungs, where gas exchange occurs. Inhaled tobacco smoke moves from the mouth through the upper airway, ultimately reaching the alveoli. As the smoke moves more deeply into the respiratory tract, more soluble gases are adsorbed and particles are deposited in the airways and alveoli. The substantial doses of carcinogens and toxins delivered to these sites place smokers at risk for malignant and nonmalignant diseases involving all components of the respiratory tract including the mouth.

Characteristics of Tobacco Smoke:-

Tobacco smoke, which comprises an aerosol (a mixture of solid and liquid particles) and gases, has thousands of chemical components, including many well-characterized toxins and carcinogens (International Agency for Research on Cancer [IARC] 2004). Many of these components are in the gas phase, and others are components of the particles. Nicotine, for example, is bound to particles in mainstream smoke. The chemical components in tobacco smoke were covered comprehensively in IARC Monograph 83 (IARC 2004) and described in previous reports of the Surgeon General. Numerous components of the smoke have the potential to injure the airways and alveoli.

Explanation:

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